To practice problem-solving strategy 27.2 motion in magnetic fields. an electron inside of a television tube moves with a speed of 2.74×107 m/s . it encounters a region with a uniform magnetic field oriented perpendicular to its trajectory. the electron begins to move along a circular arc of radius 0.190 m . what is the magnitude of the magnetic field? part ccalculate the magnitude f of the force exerted on the electron by a magnetic field of magnitude 8.21×10−4 t oriented as described in the problem introduction. express your answer in newtons.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

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im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

true is the correct answer

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the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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